Welcome to Android Central! Are you talking about the My Apps/All list in the Google Play Store app? Or the App Drawer, which is the grid with all of your installed apps?

I'm assuming you mean the list in the Google Play Store, since uninstalled apps won't show up on the phone at all. In the My Apps/All list, tap the X in the upper right of an uninstalled app's card, and that will remove it from the list.